CVE-2020-15669

Published: 01 October 2020

When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.

Priority

Medium

CVSS 3 base score: 8.8

Status

Package Release Status
firefox-esr
Launchpad, Ubuntu, Debian
Upstream
Released (68.12.0esr-1)
Ubuntu 21.04 (Hirsute Hippo) Does not exist

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

thunderbird
Launchpad, Ubuntu, Debian
Upstream
Released (68.12)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(1:78.4.3+build1-0ubuntu1)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(1:78.3.2+build1-0ubuntu1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (78.7.1+build1-0ubuntu0.20.04.1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1:78.8.1+build1-0ubuntu0.18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Needed

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist